Displays Going to Sleep

Set up a new PC at work (I'm the network admin). We have a power plan we apply to all PCs (same one that was on my last PC). On this computer, however, whenever I lock my PC (using Win+L), within 30 seconds the displays just go on standby/sleep/hibernate. This is annoying and I cannot figure out why.

Power plan is set up accordingly. NO it is not due to monitor settings, for sure Windows. Send help. Thanks.